can you change gallery icons arcgis hub individually?

[ResearchTeamSpare]

I'm new to arcgis hub and we're using it to create our front page/website. I'm wanting to put in a gallery which displays a few pages. I can see where you change the appearance 'image' from thumbnails or icons - I want to use icons but I don't particularly like the default icon for the pages content or that they're all the same. Can you change the icon to be one of your own/to different for each piece of content? 

I've tried searching for the answer but can't seem to find anything! 

Thanks in advance. 

[MariyanaKostov1]

I uploaded pictures instead of the default icons (see attachment)– I can elaborate more if that is what you are asking.

[ResearchTeamSpare]

Thanks for your reply! Yes I've started doing that as well instead - just wasn't keen on how large they are/how much space they take up! 

Add on question though - when you uploaded the pictures how did you do this? Is this by editing the thumbnail of your page? I've been wanting to add some other photos in other formats (text box code or categories) and as you need a URL for both I was adding them to Microsoft Onedrive to get a link - but if someone else on the team attempts to copy that code and apply it to a page they're making it breaks the image. Assuming this is to do with the link being to each individual onedrive - do you know a way around this? 

Thanks

[MariyanaKostov1]

Sorry for my late reply- yes, I edited the thumbnail. There might be other options but I really didn’t have time to explore more.
Also,Web App Builder is being deprecated and replaced by Experience Builder which means I’ll need to work on transferring my app since it was built in Web App Builder.